The cross section of the control cable is generally no more than 10 square meters, and the power cable is mainly used to transport power, which is generally large. Due to the above all when it comes to the reason, the specifications of the power cable can generally larger, to 500 square feet (normal manufacturer can produce range), again big cross section of the general factory is relatively less, you can do and control cable section generally small, generally not more than 10 largest square, tell from some cable, power cable according to the request of power grid, most commonly for five core, and control cable transmission control signal, some more, according to the standard terms of more than 61 core, but also can produce according to user re

NHA—VV适用范围:同NHB—VV,用于要求耐火较为苛刻的场所。
NHB—VV22适用范围:同NHB—VV,用于能承受机械外力的场所。
NHA—VV22适用范围:同NHB—VV22,用于要求耐火较为苛刻的场所。
Strict control of national standard production; Outdoor telephone line (with ointment filling and armor - uv protection and waterproof - can be buried in the ground) HYAT53 communication cable filling oil cream series: mainly used for the more conductor wire and cable core to fill the gap, moisture-proof and insulation. It has high melting temperature, suitable viscosity and good low temperature toughness. Excellent heat and water resistance; Electrical insulation performance, small loss, and good compatibility with the inner and outer sheath of the cable, is a good heating applied cable filling composite. The model of HYAT cable filled with pva is zrc-hyat HYAT23 HYAT53 zrc-hyat23 zrc-hyat23 zrc-hyat 53HYYT. ZRC - HYAT; Low smoke halogen free communication cable filling oil paste series wdz-hyat wdz-hyat23 wdz-hyat53 oil-filled communication cable? HYAT??? HYAT23? HYAT53 flame-retardant oil-filled communication cable? ZRC - HYAT; WDZ - HYAT; ZR - HYAT53? WDZ - HYA53; Zr-hya23 communication cable model: HYA; HYA22; HYA23; HYA53; ZRC - manufacuring HYA; ZRC - HYA53; WDZ - manufacuring HYA; Oil-filled communication cable: outdoor oil-filled cable HYAT? HYAT23? HYAT53HYAT; HYA23; HYAT53; HYAT22; HYYT; ZRC - HYAT; WDZ - HYAT; ZR - HYAT53; Type: HYAC, HYYC armored audio cable; HYA22; HYA23; HYA53; HYAT22; HYAT23; HYAT53; ZRC - HYA53; WDZ - HYA53; ZR - HYA23; Zr-hyat23 wdz-hyat53 armored audio cable models: HYA53, HYAT53, HYV22, HYA22 (anti-rat, underground)?
Products: this spell GB1270 the rated voltage up to and including 35 kv plastic insulated power cable, copper, aluminum core production, at the same time also can according to user needs electricity union recommendation of IEC, English, Germany and the United States.

NH-KYDYD低烟无卤阻燃聚烯烃绝缘和护套耐火控制电缆。
NH-KYDYDP低烟无卤阻燃聚烯烃绝缘和护套铜丝编织屏蔽耐火控制电缆。
NH-KYDYDP2低烟无卤阻燃聚烯烃绝缘和护套铜丝编织屏蔽耐火控制电缆。
原理:示波器会对采集的N段波形,将它们按照触发位置对齐,对N段波形进行平均运算,最终得到一段平均后的波形。
具体原理图如图3所示。
在ZDS4054Plus示波器中平均数可设置的范围是2~65536,系统默认设为64次。
?适用场景:希望减少波形中的随机噪声并提高垂直分辨率时使用。
?注意事项:滚动视图模式下不支持平均捕获模式。
平均次数越高,噪声越小,但波形显示对波形变化的相应也越慢。
图3平均捕获模式原理图高分辨率捕获模式在该模式下,该模式采用一种超取样技术,对采样波形的邻近点平均,减小输入信号上的随机噪声并在屏幕上产生更平滑的波形。
煤矿用阻燃信号电缆1、产品采用标准:Q/3700XTDL2、命名代号煤矿用通信电缆……(MH)聚乙烯绝缘……(Y)蓝阻燃聚氯乙烯护套……(V)铝-聚乙烯粘结护层……(A)聚乙烯内护套……(省略)钢丝纺织铠装……(B)钢丝铠装蓝阻燃聚氯乙烯护套……(32)软型多股铜丝……(R)铜质线芯……(省略)型号。
敷设方式:架空/管道/直埋。
EISC-S铜芯聚乙烯绝缘,聚氯乙烯护套二芯绞合屏蔽,阻燃防本质安全电缆敷设在室内.电缆沟管道的固定场合。
EISC-S22铜芯聚乙烯绝缘,聚氯乙烯护套二芯绞合屏蔽,阻燃内钢带铠装本质安全电缆敷设在室内.电缆沟管道内,直埋能承受较大机械外力等固定场合。
表3导体标称截面mm2导体结构(根数/单丝直径mm)ABR0.50.20.75/0.2332/0.2230/0.252.5。
Allowable bending radius of cable laying and installation: non-armoured layer cables shall not be less than 6 times of the outer diameter of the cable; The armoured or shielded cable shall not be less than 12 times the outer diameter of the cable. The soft cable of shield layer structure should not be less than 6 times the outer diameter of the cable.

吊线和电缆用同一外护层,经济实用,安装敷设方便。
在一30~C一60~C的环境条件下,电缆的机械和电气性能保持不变。
结构:导线:退火裸铜线,铜线直径为0.32,0.4,0.50,0.60,0.70,0.80,0.90mm。
3、绝缘电阻见下表:性能聚氯乙烯绝缘交联聚乙烯绝缘体积电阻率ρΩ.㎝20℃时电缆工作温度时-1012绝缘电阻常数KiMΩ.㎞20℃时电缆工作温度时36.70.03673.67■型号名称型号名称铜芯铝芯VV-PYJV-PVLV-PYJLV-P聚氯乙烯(交联聚乙烯)。
PWM方式,变频器中的整流器采用不可控的二极管整流,功率因数较高。
变频器的输出频率和输出电压均由逆变器按PWM方式来完成。
变频调速时,需要调节逆变器的输出电压和频率,以保证电动机主磁通的恒定。
对输出电压的调节,主要有脉冲幅值调制方式(简称PAM方式)和脉冲宽度调制方式(简称PWM方式)两种。
PAM方式,是通过改变直流电压的幅值进行调压的方式。
在此类变频器中,逆变器仅调节输出频率,而输出电压的调节则是由相控整流器或直流斩波器通过调节中间直流环节的直流电压来实现。
计算机电缆DJVPV,DJVVP,DJYVP,规格型号DJYJVP,DJYPV,DJYJPV,DJVPVP,DJYPVP,DJYJPVP,JVV,JVVPDJYPRV:耐高温-耐油-防腐蚀控制电缆ZR-KFFRKFFRPKFFR22KFFR32-200—260度的详细介绍高温屏蔽软电缆-高温软电缆耐。

HYAC自承式通信电缆执行标准:YD/T自承式电缆缆芯结构:以25对为基本单位,超过25对的电缆按单位组合,每个单位用规定色谱的单位扎带绕扎,以便识别不同的单位。
100对及以上的电缆加有1%的预备对。
自承式电缆缆芯包带:用聚酯带绕包。
缆芯内的间隙用石油膏填充。
缆芯包带:用聚脂薄膜带绕包。
屏蔽:用轧纹(或不轧纹)金属带,金属带纵包于缆芯包带之外。
护套:黑色低密度聚乙烯。
也可提供双层护套的电缆。
识别和长度标记:电缆外表面有**性识别标记,标记间隔不大于1m,标记内容有:导线直径,线对数量,电缆型号,制造厂厂名代号及制造年份,长度标记以间隔不大于1m标记在外表面上,但与上述标记错开。
我们采用多股细绞和精绞成束细一级无氧铜丝作导体,符合DINVDE0295等级6,绝缘选用PVCT12符合DINVDE0281之第1部分,PVC护套TM2符合DINVDE0281之第1部分,并做特殊的结构设计、机械及电气电气性能计算和使用场合模拟试验。